Sai Baba also said God helps those who helps themselves. God made it possible for humans to arm themselves with vaccines (an ounce of prevention is worth a pound of cure.) In my opinion
I think it’s a spit in the face to reject what has been provided to us on a silver platter (vaccines in this scenario.)
But if you want to wait until 2023 so be it
I could tell you "it's a spit in the face of Sai Baba to not accept His invitation to let Him take care of us". Different side of the same coin
But I never do this. Because I know that God has different Paths for all. No need to judge others' choice. No need to even think what others should (not) do.
If others want to take the vaccine, I tell them "go for it". If others don't want the vaccine, I tell them "Neither do I". IF they ask "what would you advise?", I give them all the info I know AND tell them "you better decide for yourself, you know what's best for you".
30 years ago I made a vow "Sai Baba, if you are God, I surrender to you. You are my doctor, I believe in what you told us "Let food be thy medicine", and I won't go to doctors, and I will follow your advice".
Sai Baba accepted this.
This doesn't mean I am free of "troubles" or I rather call it "challenges". November 30th (3 month ago) I discovered a huge cancer swelling, completely blocking my intestines.
This was a huge test in Faith... operation or let Sai Baba guide me?
I chose for Sai Baba. "Sai Baba" had me fast (no food, not a drop of water either, for 5 days). I felt great, but was unable to walk.
BUT, after 5 days the cancer swelling was gone. So, even if I get covid, I trust Sai Baba will guide me. And if I die in the process then that's fine also, as Sai Baba told me personally "you can only die IF I want". So, since Sai Baba gave me this assurance, I have not worried about health for a second (if I remember correctly).
So, it's all about choice. You choose for vaccine, I don't judge you AND I don't belittle your choice. I choose for Sai Baba.
Same as with religions. It's not about right or wrong choice. God gave us life, and all are free to choose what is best for them.