It's an excellent point Grizzly and one I raised prior to last season.
As we saw, there were times when teams were forced to limit their activity on the circuit to ensure they had enough tyres to last the race.
This season will only be worse I feel, for the reason you've mentioned.
For me, introducing all these limits and turning the whole season into a bit of a lottery with regards to who got it right in the pre-season development, is just another nail in the coffin as far as I'm concerned.
It's 2 weeks to the first race and I can honestly say, I really couldn't care less this year.
Yeah, a little unpredictability is good, but not having the tools for the job... that is never going to be a good thing, surely! We could see all kinds of random activity with teams that have needed to do miles on Friday/Saturday simply have no decent rubber left. Leading to additional pit stops, other cars getting clogged up.. i think there are justified concerns here.
The teams NEED to develop during the year, we know this, and this happens (indeed it can only happen) in the FP sessions. If they do not have tyres to roll round on, EVERYTHING will stagnate.
If F1 wants to continue to head the hierarchy that is motorsport, it must continue to out-develop other series and there are one or two restrictions creeping in that could severely hinder this.
Engine technology comes from F1, the reason our cars sip petrol and develop twice the power/displacement of an American car engine, is inexplicably linked to F1. Since the engine ban, have we stagnated European/Japanese engine development? its too early to tell..
I understand the FIA's attempts to stop massive budgets running away with all the glory, but F1 is a development race, always has been, and we live in a world that dictates survival of the fittest. That is an inescapable truth, and mollycoddling the weak does you no favors in the long run.
Short tyre life tyres is great IMO, but let the teams have enough tools for the job! One set of tyres for each practice session is not going to cut it! The teams will not even be able to run both compounds in a session without scrubbing a set of race tyres...