That is exactly how I read Eagle's comment and your framing of it is just as inaccurate as his.
When Helix came out, the POD HD500x was still sold along side it for years and years and years. Even after Helix LT came out. Who was buying it, I have no idea. But it was still in the Line 6 catalog, being sold as a new device through dealers with a full factory warranty. Similarly, When HXFX came out the M5, M9, and M13 were all sold along side it for years and years and years.
Judging by this history, I would assume that Helix will continue to be sold (and thus necessarily supported) for as long as it can be sold at a profit, regardless of if/when Helix 2 is released.
All of that said, and we are wildly off topic here given we are talking about hardware, not software, digital processors are necessarily more like cars, where tube amps and guitars are more like houses. One buys a car knowing it will eventually either be irreparable or not worth repairing. If that is something that bothers you: don't buy any digital processor. From any manufacturer.
Helix has also been in the wild long enough that I think people should start being a lot more careful about buying used units, especially those with foot switches. It doesn't matter how well it's been taken care of or how good it looks, if the foot switches have been in heavy use for 6 or 7 years, there's a decent chance 1 of the 12 is going to fail in the next few years. Or maybe things look good on the outside but internal solder joints are starting to get annoyed by 7 years of thoughtless plopping on the floor three nights a week at rehearsal/gigs. Or that USB jack is getting awfully tired of having a cable removed/reinserted several times a week. Or the photos look good, but when you get it you can tell the joystick is slightly bent and now you've got to deal with some annoying repair tech grumble about Line 6 while you just wait for him to just do the job he signed up for - fix s**t that is broken.