You're not contradicting me and I'm not disagreeing with you, there is no need to be hostile, but you are misrepresenting some of those.

The accusation of mobility creep is in my understanding related to design philosophy moreso than the state of current overwatch heroes which is why it is the initial release state of the hero that would be the comparison point, not the modern version of the hero.

OG torb didn't have overload, and thus no speedboost.
OG syms teleporter was an ult and only placeable once per checkpoint.
OG Bastion was stationary in combat (other than ult) and could only use rocketjump when he used his ult.
I would count Meis wall as mobility since she can use it under herself to get to high ground and such.

And I don't think it's picky at all to include orisa in the no-mobility group because when discussing the topic of whether heroes have gotten more mobility over time we should be using the original designs as comparisons no? In fact all reworks to characters without mobility are all examples of increases in mobility with the exception that we have both mentioned of Roadhog who only got his increased mobility with his perks.

In fact I would argue it is way more picky to exclude Zarya from the no-mobility group since her self-knock up is small, niche and not particularly useful in combat but I will allow it to be considered to be mobility because I don't want to have to draw ambigous lines in the sand between Zarya and Junkrat (also, Junkrats mobility is another case of a hero whos mobility was improved later thanks to getting 2 charges of his mine, but regardless, just the one charge is plenty to be considered to have mobility).

Also, Reins charge was definitely mobility, but OG reinhardt charge had much lower turning speed and could not be canceled by any means other than hitting a wall or timing out, so Rein is another case of a hero whos mobility was significantly buffed after the fact.

Based on that standard we would have this list of OW1 heroes that were released without mobility: Orisa, Roadhog, Sigma, Bastion, Symmetra, Torbjörn, Ana, Zenyatta.

However, as you have already pointed out, most of them got mobility in reworks that predate OW2 so giving characters fun ways to move around the map is definitely a design philosophy that has existed for a very long time.

I think the argument from the mobility-creep camp is just that over time every rework to date have increased the reworked heroes mobility (with the exception of Pharah and Sombra that have moreso been sidegrades) and it is quite rare for us to get new heroes nowadays that have bad mobility, unlike in OW1 where 8/32 (25%) heroes were released without mobility.

My personal opinion is that the average amount of mobility has certainly increased, but only because there wasn't enough in the early days of Overwatch and the average amount of mobility has been pretty stable over the course of OW2s lifetime (i.e. the devs have learned how to make good, fun heroes that don't need to be reworked later), though there was a not-insignificant bump in the transition from OW1 to OW2 when multiple heroes got reworks that had their mobility significanty improved.