It certainly would be exhausting. It’s that balance between crop damage, cost and time.I have heard of serious damage on the continent to vineyards this year. My orchards are not having a great time of things but too early to say what size crop there might be yet.
If I was using frost protection it would have been every night for more than 2 weeks, that would literally be exhausting.
I heard frost has been a real problem in France this spring. Only time will tell what damage.
Local vineyard I speak to said frost reduced their yield by over half 2 years go. Only small but the income reduction was huge.
There are static machines out there that start automatically but how many you would need depends on acreage.