This can be a good idea, or it might not. Considerations are: Are there too many ideas on the table? Are we interfering with the facilitator’s process (even with the best intentions) and distracting the group just based on our personal preference? How does the facilitator receive our support? It is important to get that information, either by checking in after (e.g. in the meeting evaluation or privately) or, even better, to make an explicit agreement on whether/how the facilitator wants to receive ideas on process. This is particularly important if there is an imbalance of power and/or experience.
For more information, check out our handbook Many Voices One Song chapter 4