For all intents and purposes, basically, bots can’t send whispers reliably.
For your use case, users should just scroll up in chat and read chat as the data they are after is already in chat.
Sending as a whisper is useless for users on mobile, as they have a longer fudgery to go find the whisper.
So for your usecase theres no good solution.
What you are doing might work as a panel or video component extension, (for mobile users thats just one click away)