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I like your thinking. I almost never deep strike with my Blood Angels (despite them being practically built for it) because every time I do I just get blown up by a tank or chem cannon. That isn't really that realistic if you think about it. If someone drops out of the sky, you won't be able to swing your tank around and accurately blast them.
Deathwing on the other hand are great to deep strike because they are super shooty.
I like your first idea. It makes deep striking and drop podding meltas a bit less powerful, and allows assault units to have a chance. I might use a version of this rule for my blood angel warlord traits if you don't mind.

http://www.dakkadakka.com/dakkaforum/posts/list/527506.page#5627940

@greyknight12

That would be the strategy that I would use (target saturation), but there are a few problems. First of all, you can only put half of your units in reserve. So in a 1500pt army, 750(ish) will be in reserve, and they won't have a chance to come out of reserve until turn 2 which means that your army that is on the board will be shot out. Turn 2, about 500pts will be coming in from reserve which will be easily shot up. And the next turn even less will be dropping in .

Deathwing has it much better because all of them in reserve can come in on the same turn if they want (and have twin linked weapons).

Blood angels on the other hand would drop in with a fragile jump unit and get shot to pieces before they get to do anything. So I usually deploy them in cover and move up as a unit unless I have a specific job for a specific unit. So an army that is built with a ton of deep strike special rules still isn't that great at deep strike.

I don't think that the OP's rules shouldn't be universal rules for all armies, but it would be pretty cool as a special rule I think.