yup totally understand your point. by competitive, what do you mean? should new players with weak cards be making 1300 every week?
a smaller collection should mean that what one defines as competitive is adjusted accordingly.
goals in ELO
should be something along these lines as people are growing their collections:
1)play 5 games and be above 1000 at the end of the week for the clintz and 2 credits
2) 1200 points at the end of the week for the clintz and 5 credits
3) 1300 points at the end of the week for the clintz and 10 credits
4) top 100s or better
now should new players be able to meet goals 3 and 4 right away? that would actually make the game less interesting and the motivation to save clintz/credits and collect cards would actually drop
you own almost 500 of the cards... but you have less than 500 matches of experience. what is keeping you out of higher ELO
scores is not the cards, but the match experience. keep playing and improve, and 1300 will be easy regardless of what deck format is allowed in any given ELO