Why not?
Would anybody blink if we suspected deoxys? As a support mon, he can only really be considered maybe broken with a core devoted to protecting hazards and a team devoted to abusing it like HO. It'd probably get voted against again, as the meta has largely agreed that deosharp and similar cores are a positive contribution to the meta. Baton Pass is largely a negative one, so if people voted against a Scolipede ban, the only excuse they'd really have is that they want to avoid collateral, but that's not the way we've done things, and when we tried, Gen 5 happened. In order to ban everything bad for the meta, without any collateral damage, we'd have to implement several complex bans that would have to be tested and revised, and the more complex we make bans, the more people will support lame stuff like allowing Blaziken back in OU and UU with Blaze, and it'd all be tedious and kinda a waste of time. There's a reason we avoid complex bans, they don't get the job done like regular ones do, and overuse of them sets a bad precedent (not a slippery slope, as mods still know well enough to not get carried away, just gives a bad impression).
Now, just to clarify, I understand completely that Baton Pass is not the same as everybody using Mega Kangaskhan for easy wins. It's got a team element absent from almost all other ban situations, so if a complex ban like "no Magic Bounce + Baton Pass allowed!", I would vote yes every time. If another strange one that I wouldn't consider standard like "No more than 2 baton passers per team!" got suspected, again, I'd vote yes. This is a weird issue and might deserve a weird solution, but I think the first one suggests that a pokemon can have a ban worthy set, but isn't banned, which confuses me, and the second one kills a playing style for not requiring skill and being bad for the meta, when a single change would make it need skill, and be at least neutral to the meta.
Defining the root problem of what makes this "strategy" a problem is the key. If BP is inherently bad, either ban it, or limit its # of abusers per team. If the support Scolipede or Espeon (and her late game sweeping) are the problem, then I think we should ban them (only one, two would be overkill probably), or at least ban their ability to be on BP teams. I don't really see any other options, and like Treecko said, which you choose depends on your own philosophy.