In the past, this is what made battletech a strong franchise.
I don't disagree with your points (in fact, I tend to agree with them pretty strongly). I think that your post is missing the most important item on that list. The gaming market of the late 80's through mid 90's, definitely a high point in terms of BT recognition, is a completely different beast from today. Market saturation plays a huge rule in that difference, as well as a drastic contraction of the market through the late 90's and early oughts. The gaming market is nowhere near as large, so it also isn't surprising that BT's portion of that market is nowhere near as large. The product and timeline delay between FASA's closing and FanPro/CGL stepping in probably didn't help either. Whenever you are talking about a game that has been around since the late 80's, any non-electronic game...there are absolutely going to be huge differences in sales and visibility between then and now, even among the giants of GW, WoTC, or White Wolf (at one time). You couldn't shake a stick in that heyday without running into several local game stores (or at least a comic shop that supported gaming) in even very rural locales in the US. You could even buy WW and WoTC print products directly in many big-box stores and electronic gaming stores (EB/Gamestop). Everybody and their sibling was producing a rather different take on something, either with a homebrew/independent system or as part of the OGL.
When you're looking at BT's history, or any game for that matter, it's almost an unrealistic comparison to look at it between "then and now."
In terms of point 2, that's just the reality of BT for the near and far distant future. With the board game people having no input or control (beyond what a video game creator chooses to allow) ever since the license purchase by Microsoft, a good (or bad) video game really doesn't matter one bit, if there isn't a great deal of cross-promotion going on. Whether or not those video game rights should ever have been spun off is a whole other debate, and probably more suited for a better business and legal mind than I. Does the disconnect between electronic and paper hurt? I'd put a heavy bet on "You betcha." Is there anything that can be done about that, other than CGL finding a source of very, very big money and buying the rights back permanently from MS? Probably not. So I find it harder to hold that point against.