The phrase "are essentially throwing" is correct and usable in written English.
It can be used to describe an action that is fundamentally or primarily about throwing something, often in a metaphorical sense.
Example: "In this debate, both sides are essentially throwing accusations at each other without providing substantial evidence."
Alternatives: "are basically hurling" or "are fundamentally casting".
"They are essentially throwing the student under the bus and responding to political pressure".
That serious venture capitalists and corporations are essentially throwing money at a force they can't quantify may indicate Facebook's power.
Don't worry, you are not alone in this endeavor, but you are essentially throwing away your hard-earned money.
Add it all up and, at a moment when the domestic order of the day is cutting the funding for the sort of domestic services ― from health care to the environment ― that actually do keep us secure, we the people are essentially throwing our money into the black hole of war and preparations for yet more of it.
"Unfortunately, that distraction was extremely disappointing from an economic perspective and is essentially throwing gasoline onto an already raging risk-off fire in the capital markets".
Mendelson was essentially throwing down a gauntlet, challenging Congress either to take action to block Initiative 71 altogether or to let the city govern itself.
"If I see my biggest advocate, and the guy with the most access out of shareholders, is essentially throwing in the towel, that's not a good sign," said Robert Bolton, managing director for trading at Mendon Capital Advisors.
Or they might do it because they have a particular bias or hunch about a game, in which case they're essentially throwing their 3percentt margin out the window and gambling with their own money.
General Electric's NBC recently announced it was essentially throwing in the towel, cutting five hours of scripted television per week.
If you're not marketing your content, then you're essentially throwing away free traffic to your website.
You're essentially throwing away all the hard work you've done.
