Your revenue doesn't immediately stop if you stop incremental improvements. This gives you time to find an alternative tool.
On the other hand, if the infrastructure your product is based on stops, your product is dead, revenue will stop and you may even breach your SLAs and have to pay them compensation.
On the other hand, if the infrastructure your product is based on stops, your product is dead, revenue will stop and you may even breach your SLAs and have to pay them compensation.