I only know of the Virus…
although they documented the sysex for the early virus (not the TI!), I think sysex was mainly focused on patch dumps etc (though single parameter change kind of falls out of how they did it, but is still 11 bytes)
for automation they supported two other mechanism :
a) Mod matrix
synths could only provide access to ~110 parameters via CC (remember some cc are ‘reservered’) , many like virus had many more… so they put the 100 most used on CC, and then others could be accessed via the mod matrix which could be modulate via a CC.
(… I guess close to what daws would call a midi learn approach)
b) polypressure
this was quite ‘clever’ , though a ‘grave missue’ of the standard 
polypressure as a concept was not supported by the Virus, and few used it anyway. so they ‘re-used’ this message. providing another 127 parameters.
the advantage of this is, its channelled, its only 3 bytes long, its a standard midi message.
(though in the end not that useful… since because polypressure was not used widely, few daws supported it )
anyway my point previously was not that sysex was not put to use for this… it clearly was.
but that it wasnt really intended to be used like this, it was kind of an abuse (like Virus using polypressure) of the standard - which would never see widespread adoption.
(sysex is consider a proprietary message for that manufacture - which are ‘ignored’ by other midi instruments/manufactures)
the easiest/most flexible way to deal with them, is to use some kind of ‘translator’ on your midi network to turn them standard CC (or similar) midi messages.
the ‘good news’ is that midi 2.0 will also potentially help in this area…
we will be able to build midi 2.0 ‘translators’ that could turn these sysex into the new NRPN 32 bit universal messages, and use MIDI-CI to describe them.
this would enable new midi 2.0 ‘hosts’ (sequencers/daws) to automate these parameters effortlessly 
of couse… the point is ‘midi 2.0’ hosts, whilst software daws will just natually evolve into midi 2.0 over time.
I think we can expect that most hardware sequencers will require new hardware…
possibly because they need more powerful hardware (more memory in particular!?), but also because the firmware will likely need radical re-writes… and that development needs to be ‘paid for’ some how.
But Im definitingly looking forward to midi 2.0, and in particular midi-ci - midi parameters were a bit of a mess in 1.0… and have long needed sorting out 