That is why I like the SOL Scout, it seems to cover the basics and have room to add a few small items.
Making your own is always better but IMO you still need to supply all these items in some form.
The OP did raise a question concerning the effectiveness of the new striker and that is why I asked if anyone has done a side-by-side test?
Nothing in this kit seems to be "trash" except for the fishing kit and possibly the whistle. IIRC there were some early reports of glue failure
that now seems to have been rectified, at least from close examination
of my kit.
I did toss out the Mono fishing line and substituted a bobbin of HD poly thread. I can't remember if mine had a needle in it or not, just that it has one now.
Like I said earlier I think the dry bag is a real waste of money for this
kit, I wonder if the items would fit in a BCB style tin? IMO it would still be waterproof when sealed and be a more useful container when empty. Would the cost of tin vs dry bag be a wash, I don't know.

Duct Tape
1 Duct Tape, 2" x 50"

Survival Tools
1 Compass, Button, Liquid Filled
1 Fire Lite Fire Striker
1 Fishing Gear in Vial
1 Heatsheet Survival Blanket
1 Mini Rescue Flash Signal Mirror
1 Mini Rescue Howler Whistle
1 Tinder Quick