I never thought my first reaction in a thread like this would be "wow, I really agree with alfa", but here we are
I understand testing such a massive change extensively before implementing it, I just wish people who didn't consistently play/watch high lvl tf2 for this whole time period would accept that some of us remember when the game was in its very best state (depending on whether or not you like the demo nerf this would be either i52ish or i55ish) and saw the really boring changes that the med speed change ushered in
a better counterargument would be to suggest that the skill level of players, particularly soldiers, has increased enough that we can't predict how a med speed-less game would be in 2020; maybe soldier bombs would just be too good, even against the best medics and pocket scouts in the game. that's what testing is for, which is valid.