While that may be mathematically true, you have:
| Team | Played | Points |
|---|
| Palace | 21 | 28 |
| Spurs | 21 | 27 |
| Bournemouth | 21 | 26 |
| Leeds | 21 | 22 |
| Forest | 21 | 21 |
| West Ham | 21 | 14 |
| Burnley | 21 | 13 |
| Wolves | 21 | 7 |
To even get to match our current points total, Burnley would need 14 points from the next 17 games. That's more than double what they've had from 21. Wolves would need 20 points from their last 17.
West Ham would need to double their 21 game points haul in the last 17.
Even if West Ham beat us, that's still Forest and Leeds needing an uptick in form.
30 points is probably safe from relegation this season
(note that people have quite liked the managers from the teams either side of us)