this huge pool of many low-value clients, while harder to scale a business with, does enable one to iterate much faster and with a higher risk tolerance, which has accumulated benefits for R&D, allowing these competitors to challenge you for the higher-value clients down the line
this is a major part of why I'm generally more philosophically aligned with the B2C SaaS startup approach, as it's much easier to scale up to target large enterprises than to scale down to target smaller consumers
having many small users drastically increases your learning rate