The premiums contained within WHS are not arbitrary; they have been derived from extensive analysis of hundreds of thousands of scores. Your proposed penalties have no such evidential basis.My idea was a basic example, not a refined and detailed way in which it should work.
The -2.0 reduction that WHS applies is therefore entirely arbitrary, and by your definition does not allow a new golfer to compete equitably anyway.
At my club, a player with a handicap over 24 has zero choice. They simply cannot play, end of story. Now, you can argue that the club is discriminating against high handicappers. They are. But, they are doing so for a reason. Because they feel that this WHS handicap system (or the system that preceded it) does anything but provide an equitable system. If people can happily acknowledge that new golfers will always have the ability to quickly improve, thus shooting lower scores, then it is simply not true that the system is equitable when comparing a new golfer with a golfer who has played for a long time.
And, I go back to what I said before. Not one person will ever convince me that a player has a fair and equitable handicap after submitting 3 scores. Even if I was to submit 3 scores in the next week or 2, and they were the only scores on my record, WHS could give me a handicap of 0.0 if I played really well (in one round), or 18.0 if a struggled over those rounds. That is huge, and I'm not exactly a rapidly improving golfer.
I rather suspect the handicap limits at your club are historical and any proposal to change or remove them has been resisted; by being applicable to all higher handicappers it's unlikely they were brought about by an irrational fear of new and improving golfers posting good scores.
Citing extreme (and hypothetical) examples is not a sound basis for proposing severely restrictive practices.