this discussion is useless. Seems like some people are strictly theory machining what models can and can't do.
Each unit/jack has a function, doesn't mean they are bad if you can't figure out how to use them.
Solos are now a luxury in your list. You have to have a plan to make them worth while.
We've still yet to see the full armory of menoth and i can see tier lists offering free solo "seneschal"