What is the relation to Valentine and Bren blobs?
Read what you wrote, I have even highlighted for you, I never said anything about bren blobs:
"The only buffs they received were stuff like an officer CQB unit, smoke on global cooldown and Cromwell MGs.
All will have little effect outside of 1vs1 and 2vs2. "
The buff you mention are not the only ones and the Valentine change will have an impact in large modes.
Unless you consider tank hunter Tommies cancer, lol
I listed the three biggest buffs because they are the most relevant, a few extra MG Burts to wasp survivability is not relevant in the grand scheme of things.
And you have missed the moving accuracy buffs that will make IS blob allot more effective especially when using abilities like "assault" and "Advanced Cover Combat"
I stand by my point, you are over simplifying UKF got numerous buff across all modes.