"accelerate implementation by eschewing customisation"
So it's basically their way or the highway.
For small businesses who are starting to grow, such limitations can be quite acceptable, but once the business has grown into generating millions per month, I think that Freshworks is going to find that its abilities are no longer enough and the larger clients will migrate to something more customizable.
Which shouldn't really be a problem for Freshworks, since there's always more little businesses to service.