I couldn't find information about two key points that made x402 such a good alternative: (a) Transaction fees. Network fees make microtransactions prohibitive

I couldn't find information about two key points that made x402 such a good alternative: (a) Transaction fees. Network fees make microtransactions prohibitively expensive. This is the real problem. (b) 3DS & latency issues If (a) is still the same, then meaningful transactions (eg.new accounts) would require human validation of sorts, which tenders the MPP use case very small.