It could be that a bug that makes the experience less enjoyable for the majority getting fixed, also ends up inadvertently fixing a bug enjoyed by speed runners. I mean, some of the bugs speed runners use are touchy like that, with them being just inherent properties of how certain mechanics were coded and changing just a value of a thing can make that Speedrun glitch go bye bye. Like the glitch that lets you go straight to the end credits in Castlevania just by going up the stairs at the end of level 3 a specific way so you ensure a bit is a certain value when doing the transition. If they did anything to alter the values of a jump or moving or added another way to reset that value back to default, or even changing the default, that glitch would either be done differently or wouldn’t work anymore.
It could be that a bug that makes the experience less enjoyable for the majority getting fixed, also ends up inadvertently fixing a bug enjoyed by speed runners. I mean, some of the bugs speed runners use are touchy like that, with them being just inherent properties of how certain mechanics were coded and changing just a value of a thing can make that Speedrun glitch go bye bye. Like the glitch that lets you go straight to the end credits in Castlevania just by going up the stairs at the end of level 3 a specific way so you ensure a bit is a certain value when doing the transition. If they did anything to alter the values of a jump or moving or added another way to reset that value back to default, or even changing the default, that glitch would either be done differently or wouldn’t work anymore.