Skial VSH and FF2 don't add maps for simply testing a map, and i'm not sure what you mean by non applicable knowledge, i've played so many different kinds of VSH, and FF2 servers in my 7+ years of TF2 and i can say Powerups on a VSH/FF2 map is a bad design feature when servers can already do Plugins for said features.
Well, if you wanted results from my own testing, I don't think it had a negative impact on/or was too disruptive to gameplay at all, which is why I'm arguing this.
Non applicable knowledge meaning that I doubt there as been an implementation of these mechanics of this kind.
There might be plugins that can do something similar, but there's a difference between map placed objects and plugins.
These locations become POIs, while simultaneously becoming a target for Hale. There a distance you have to travel and a location you have to be in, as well as you having to get there first. Hale can gatekeep players from obtaining these unlike the use of something plugin related (like RTD), and all 3 of them make it so you have to put in a lot of leg work to get to or put yourself in a dangerous position to obtain (While also only allowing one player to obtain them at once, as they take longer to respawn than it takes for the effects to wear off). Meaning at any given time, you only have one to three problematic players to worry about (one of which will have quite a sub-par effect.)
Our knowledge is non applicable because we don’t know what we’re talking about obviously
Well I can tell you're being facetious, but I'm not joking nor being condescending in the slightest.
I'm simply imploring you to take a closer look at the map. I'm willing to make a concession on the powerups, but only if they truly have such a drastically negative effect on gameplay as you think.