not exactly.
The changes back then had a totally different purpose than MistakenKing's suggestion.
Back then, they lowered the ms from all boots by 25 and increased all base ms by 25, makeing it so that starting with boots wasn't mandatoryfor nearly all champs.
The didn'change the base MS of champs relative to each other.
Boots enchants again was something that applied to all champions the same.
What the OP suggests is that we get a wider reach in base MS and for a clear destinction between individual champs, and focus some classes on haveing more base ms compared to others. Cause right now, you have an assasin like Talon with 335ms and a marksmen like Quin, who also has alot of mobillity from her kit while beeing ranged, with 335ms aswell, you have a melee fighter like
that needs to stick to a target in melee range to do anything at only 5 more ms than a highranged poke/artillery mage like
.
The extremly small differences between base MS, especially for ranged vs melee, means that most melees need either high cc or very potent mobillity tools in their kit, leading to the current mobillity creep, as there's no way of catching up to a ranged champ without either ranged cc or a gapcloser.
On top of that, ranged champs generally have much better items for in combat mobillity aswell...