Really can't get on board with the argument that 'it spices things up a bit, the luck balances out over the course of the season'. Opportunities for good results do not balance out over the course of the season. When you see someone who isn't normally a podium contender, e.g. Vettel, running in 3rd, it's quite interesting because you know they might not get another chance in a while, because results don't balance out during the year. When Leclerc overtakes Verstappen for the lead, you think 'that could be important in the championship battle', you don't think 'meh, Verstappen will overtake him in another race because things balance out'.
So, let's carry on with one of those examples. Let's say Vettel's in 3rd, with Sainz close behind, getting close to overtaking but not quite being able to manage it, with 1 pit stop to go. Vettel makes his stop quite early to avoid being undercut, albeit knowing Sainz will have a tyre advantage after he makes his final stop. Instead, the VSC comes out, Sainz makes a cheap pit stop and jumps Vettel. Was that really 'spicing things up'? That kind of outcome feels completely rubbish to me. The argument that teams should factor in a possible VSC into their strategy just doesn't add up. If Vettel stays out hoping for a VSC, Sainz will just undercut him and 95% of the time Vettel won't get the VSC he needs to jump Sainz back. There is no sensible strategic move that Aston Martin could make to protect themselves from that outcome.
And it's really not like getting lucky with rain. If a driver gets lucky with the rain by e.g. pitting early for dry tyres on a drying track, they've exposed themselves to the possibility of it going horribly wrong - they've at least risked something to have access to that luck. When drivers get lucky with VSC, there's no risk/reward taking place, it's just a completly undramatic, unmerited coin toss in their favour. (Although to put it into perspective, it's only about 5% as irritating as the closed pits rule in Indycar but I don't want to get started on that).