Many are jumping in with snow safety 101 and pulling out the red pen. It's not really germane and is getting off topic.
The whites in the spring in a corn cycle are pretty unique hazard remediation. Avalanche danger is low (there is a forecast area and daily bulletin pretty close to where this happened) unless there has been a storm high in the last 48-72 hours and depends much on rain, snow and strength of winds.
Saving pockets of lee wind pillows, etc. he really had no need for ABP (especially since he was solo and a fully charged phone with good service reception (VZN being best IME) serves more use than BSP solo.
Most of those gullies would be frozen solid veritable ice luges until they get enough solar gain to peel away the top few cm or inches with your ski edges.
If I understand, he was scouting his line and had a point release in an area that either had corn snow that had refrozen but not bonded or he was on a small pocket that released and put him off immediately into a release / slide situation exacerbated by not being able to self arrest / ski arrest then a full on meat rocket into a very rocky gully.
I don't question soloing in general. I love it. But if you fuck up it does bring other people into risk and that is the biggest issue I have with it because some people simply don't consider that before they go - or ever. That is myopic at best and selfish at worst. Solo until the day you die, but when your exploits go viral, that's either great or really really bad. I bet this kid is getting the point and laugh at his local hannaford.
His choice to solo this line, which is way out there and off the grid where no one was gonna help him unless he called for help (WHICH HE DID, but lost signal) is problematic when he could have gone S to washington and skied similar lines with more of a support system if shit went south. Dodges, duchess, tuckerman icefall lines aplenty all in the direct binocular view of rangers (not that they are your wet nurse either, but at least they are there full time and it's part of their job, plus rescue and extract is more routine).
You'd be better off showing some humility and gratitude - especially in public to your mom, F&G and anyone else who helped you out. Then go back and ski your lines quietly and impress yourself or whoever you want to with that.