Hi @info24447 The best resource for the questions your asking is the Marketplace Terms of Use: https://www.wix.com/marketplace/terms-of-use
If you have not already, you also may want to check out the Marketplace Lead Matching Guidelines: https://www.wix.com/marketplace/partner-guidelines
At this time, Wix does not have a practice/policy of removing Partners from the Marketplace simply due to 1% or lower completion rate. However, Wix reserves the right to remove Partners from the Marketplace at any time.
We look at a number of factors when matching Partners with leads. We are also constantly updating the matching process to optimize the experience for both Partners and users who submit project requests. The things you mention with respect to lead matching - price, time period, tenure in the Marketplace - are all things that my team and discuss constantly. Thank you for your feedback.