Sorry bub you don't even know how FedEx works.
Sorry I am/was right. I will now link you to your service guide. HOWEVER... I will gladly state this is new info, looking at the date and it goes into affect next year. So I'm cool with not having this new info until now. AND I'm ok with what I said, as I couldn't get into the whole WSJ Article as I'm locked out. It is still a fact that Ground does have Dim pricing today and the rules will be changing, the rules have changed over the years. Having dim packages hasn't.
Here's your Service Guide:
Dimensional Weight
Express.
Dimensional weight is calculated by multiplying the length by width by height
of each package in inches and dividing the total by 166 (for shipments within the U.S. and
shipments between the U.S. and Puerto Rico) or 139 (for U.S. export and U.S. import-rated
international shipments). If the dimensional weight exceeds the actual weight, charges
may be assessed based on the dimensional weight. Dimensions of one-half inch or greater
are rounded up to the next whole number; dimensions less than one-half inch are rounded
down. The final calculation is rounded up to the next whole pound. Dimensional weight
applies per package or per shipment to all FedEx Express U.S. shipments in customer
packaging, and per shipment to all international shipments and U.S.-to-Puerto Rico
shipments in customer packaging. Shipments in FedEx packaging may be subject to
dimensional-weight pricing.
Ground.
Dimensional weight may apply to FedEx Ground packages that are 3 cubic feet
(5,184 cubic inches) or larger. Multiply the length by width by height of each package in
inches. If the total is 5,184 or greater, calculate dimensional weight by dividing by 166
(for shipments within the U.S.) or 139 (for shipments to Canada). If the dimensional weight
exceeds the actual weight, charges may be assessed based on the dimensional weight.
If the chargeable weight exceeds 150 lbs., a prorated per-pound rate will be used.
Dimensions of one-half inch or greater are rounded up to the next whole number;
dimensions less than one-half inch are rounded down. The final calculation is rounded
up to the next whole pound. If the package measures less than 5,184 cubic inches,
dimensional weight does not apply and charges will be assessed based on actual weight.
So I'll gladly state that sure something new can be coming or changes to something already existing. It's a given. But Ground has had dim weighting for a long time and it has always been equal to UPS. So with that logic I will at this time assume UPS will match exactly what Fedex is doing here. I will follow up with Reps on both ends for clarification.
What basically is happening after reading your link (thank you) is dropping the minimum that Express doesn't have:
Ground Dimensional weight may apply to FedEx Ground packages that are 3 cubic feet or larger. -This is going away.
That means the formula is now based on every package without a minimum like Express.
(LxWxH/166 if sum>Weight, billed by that Dim Sum.) It doesn't mean all packages will then dim out, if the package is still denser/heavier you will be billed by weight. It's just the formula is now applied to all packages. Now am I crazy about this? No. However it isn't surprising, unfortunately costs of shipping continues to rise for us.
So back to the WSJ article which I cannot read in full... it isn't all ground packages will now be dimmed charged, they will all be subject to the formula.