Celery 4.4 + Redis - long ETA tasks, default_timeout

Question

We are using Celery (celery==4.4.7) along with Redis broker We have some long ETA tasks with some tasks having ETA of now + 7 days. We were getting issues of the celery tasks being executed multiple times and during debugging we found that the reason is because default_timeout is 1 hour

I looked here: celery tasks with long eta (8+ hours) are executed multiple times in a row when eta is reached

and

https://docs.celeryq.dev/en/4.4.0/getting-started/brokers/redis.html#visibility-timeout

We want to increase the default_timeout to 7 days or a bit longer to 8 days.

app.conf.broker_transport_options = {"visibility_timeout": 864000}

Are there any negative consequences of doing this?